This member of the tomato family is a very unusual species for the nightshade family. The foliage is highlighted by bright orange spines and midrib that glow in the sun. Spines cover the plant, including the tops and bottoms of the leaves. Showy purple flowers in the summer contrast nicely. It's a tropical plant from Madagascar and but can tolerate a light frost. Can reseed, possibly invasive in tropical climates, but usually just reseeds around the mother plant. It gets about 3' to 5' tall and wide in the ground, but it's more commonly grown in a container as a curiosity and much smaller in size. Grown as an annual in colder climates, seeds can be collected in the fall and planted the following spring.